CN219079120U - Nanofiltration device for sewage treatment - Google Patents

Abstract

The utility model discloses a nanofiltration device for sewage treatment, which relates to the technical field of sewage treatment and comprises a shell, wherein a fixing plate is arranged at the middle part of the upper end of the shell, a turnover cover is rotatably connected at the left end and the right end of the fixing plate, an upper opening is formed at the upper end of the turnover cover at the left side, a conversion mechanism is arranged on the lower wall of an inner cavity of the shell, two nanofiltration mechanisms are arranged at the upper end of the conversion mechanism, a water inlet pipe is arranged at the upper end of the nanofiltration mechanism at the left side, the water inlet pipe penetrates through the upper opening and extends to the upper part of the turnover cover, a water outlet pipe is arranged at the lower end of the nanofiltration mechanism at the left side, and the lower end of the water outlet pipe extends to the lower part of the shell. According to the utility model, the two nanofiltration mechanisms are arranged for alternately filtering sewage, so that the dead time caused by replacing nanofiltration membranes is reduced, the sewage treatment efficiency is ensured, and the probability of plugging nanofiltration membranes is reduced by arranging the filter screen, the outer PP cotton, the active carbon layer and the inner PP cotton to block impurities in the sewage.

Description

Nanofiltration device for sewage treatment

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a nanofiltration device for sewage treatment.

Background

Nanofiltration is a membrane separation technique between ultrafiltration and reverse osmosis, and the pore size of nanofiltration membranes is a few nanometers, and nanofiltration techniques are therefore named. The nanofiltration process and the reverse osmosis and ultrafiltration processes are pressure-driven membrane processes, but the mass transfer mechanism is different. Nanofiltration membranes are generally considered as dissolution-diffusion modes; meanwhile, most nanofiltration membranes are charged, and the separation behavior of the nanofiltration membranes on inorganic salts is controlled by chemical gradients and is influenced by potential gradients. The nanofiltration technology has no chemical reaction, no heating or phase transition, no damage to biological activity and no change of flavor and fragrance, so that the nanofiltration technology is more and more widely applied to water treatment. The application of nanofiltration technology in water treatment mainly comprises: purifying and softening drinking water, preparing ultrapure water in the fields of electronics, semiconductors, biology and medicine production, purifying polluted surface water, groundwater and industrial wastewater, and the like.

Because the aperture of the nanofiltration membrane is smaller, the nanofiltration membrane is easy to be blocked by impurities in the water body, and further the filtration effect is poor, so that the nanofiltration membrane needs to be replaced after being used for a period of time. The sewage inlet pipe is required to be closed at first, then the nanofiltration device is disassembled, the disassembly time of the nanofiltration device is longer, then a new nanofiltration device is replaced, finally the sewage inlet pipe is opened again, the whole process is long in time consumption, and the sewage treatment efficiency is reduced, so that the nanofiltration device for sewage treatment is provided, the time for replacing the nanofiltration device is shortened, and the sewage treatment efficiency is improved.

Disclosure of Invention

The utility model mainly aims to provide a nanofiltration device for sewage treatment, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a sewage treatment's nanofiltration device, includes the shell, shell upper end mid-mounting has the fixed plate, fixed plate left end and right-hand member all rotate and are connected with flip, left side the upper shed has been opened to the flip upper end, shell inner chamber lower wall is provided with conversion mechanism, the conversion mechanism upper end is provided with two nanofiltration mechanism, left side nanofiltration mechanism installs the inlet tube in the upper end, the inlet tube runs through the upper shed and extends to flip top, left side nanofiltration mechanism installs the outlet pipe in the lower extreme, the outlet pipe lower extreme extends to the shell below.

Preferably, the nanofiltration mechanism comprises a shell, the water inlet joint is installed on shell surface upper portion, water inlet joint and inlet tube fixed connection, filter screen and inner core pipe have been installed in proper order to the shell inner chamber from the top down, the inner core pipe surface has wrapped gradually from inside to outside and has received filter membrane, inlayer PP cotton, activated carbon layer and outer PP cotton, outer PP cotton surface and shells inner wall in close contact, the water outlet joint is installed to the inner core pipe lower extreme, the water outlet joint extends to the shell lower extreme face, water outlet joint and outlet pipe fixed connection.

Preferably, the conversion mechanism comprises a rotary table, a rotary shaft is arranged at the middle part of the lower end of the rotary table, the lower end of the rotary shaft is movably connected with the lower wall of the inner cavity of the shell, and two placing grooves which are vertically communicated are formed in the upper end of the rotary table.

Preferably, the two placing grooves are respectively and movably sleeved with the two shells.

Preferably, the lower end of the shell is provided with a lower opening, and the lower opening is positioned right below the upper opening.

Preferably, the water outlet pipe penetrates through the lower opening.

Compared with the prior art, the utility model has the following beneficial effects:

1. the two nanofiltration mechanisms are arranged for alternately filtering sewage, the water inlet joint of one nanofiltration mechanism is connected with the water inlet pipe, the water outlet joint is connected with the water outlet pipe, the purification and filtration of the sewage are completed through the nanofiltration membrane, the active carbon layer and the like in the nanofiltration mechanism, after the time for replacing the nanofiltration membrane is reached, the water inlet pipe and the water outlet pipe are taken down, then the turntable is rotated, the other nanofiltration mechanism moves to the lower part of the upper opening, then the water inlet pipe and the water outlet pipe are connected with the new nanofiltration mechanism, meanwhile, the nanofiltration mechanism which needs to be replaced can be taken away, the replacement of the nanofiltration membrane is completed, and then the nanofiltration mechanism is replaced again, and the next alternate replacement is waited, so that the rest time of sewage treatment is effectively reduced in the whole operation process, and the sewage treatment efficiency is ensured;

2. through setting up the filter screen and be arranged in filtering the impurity of great particle diameter in the sewage, the rethread sets up outer PP cotton, activated carbon layer and the cotton impurity such as rust, silt in the absorption sewage of inlayer PP, reduces the probability that the nanofiltration membrane blockked up, is arranged in absorbing the heavy metal in the sewage through setting up the nanofiltration membrane at last, realizes the filtration purification of sewage.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic cross-sectional view of a nanofiltration mechanism;

fig. 4 is a schematic perspective view of the conversion mechanism.

In the figure: 1. a housing; 2. a fixing plate; 3. a flip cover; 4. an upper opening; 5. a conversion mechanism; 6. a nanofiltration mechanism; 7. a water inlet pipe; 8. a water outlet pipe; 11. a lower opening; 51. a turntable; 52. a rotation shaft; 53. a placement groove; 61. a housing; 62. a water inlet joint; 63. a filter screen; 64. an inner core tube; 65. nanofiltration membrane; 66. inner layer PP cotton; 67. an activated carbon layer; 68. an outer layer of PP cotton; 69. and a water outlet joint.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-4, a nanofiltration device for sewage treatment includes a housing 1, as a specific embodiment, the housing 1 in this embodiment is in a cylindrical structure, a fixing plate 2 is mounted in the middle of the upper end of the housing 1, the left end and the right end of the fixing plate 2 are both rotatably connected with a flip 3 through hinges, as a specific embodiment, the flip 3 and the fixing plate 2 in this embodiment jointly form a circular structure, the upper end of the flip 3 is opened at the left side, the diameter of the upper opening 4 is greater than that of a water inlet pipe 7, the water inlet pipe 7 is connected with a sewage source for conveying sewage into the nanofiltration mechanism 6, a conversion mechanism 5 is disposed on the lower wall of an inner cavity of the housing 1, two nanofiltration mechanisms 6 are disposed at the upper end of the conversion mechanism 5, a water inlet pipe 7 is mounted at the upper end of the nanofiltration mechanism 6, the water inlet pipe 7 penetrates through the upper opening 4 and extends to the upper side of the flip 3, a water outlet pipe 8 is mounted at the lower end of the nanofiltration mechanism 6, the lower end of the water outlet pipe 8 extends to the lower side of the housing 1 and is connected with the sewage source for delivering sewage into the nanofiltration mechanism 6.

Further, the nanofiltration mechanism 6 includes a housing 61, as a specific embodiment, an access hole is provided on a lower end surface of the housing 61 in this embodiment, for replacing the nanofiltration membrane 65, a water inlet connector 62 is installed on an upper portion of an outer surface of the housing 61, the water inlet connector 62 is fixedly connected with the water inlet pipe 7, a filter screen 63 and an inner core pipe 64 are sequentially installed in an inner cavity of the housing 61 from top to bottom, the inner core pipe 64 is of the prior art, a leak hole is provided on a surface of the inner core pipe 64, when sewage passes through the nanofiltration membrane 65 and flows into an inner cavity of the inner core pipe 64 through the leak hole, the outer surface of the inner core pipe 64 is sequentially wrapped with the nanofiltration membrane 65, an inner layer PP cotton 66, an activated carbon layer 67 and an outer layer PP cotton 68 from inside to outside, the outer surface of the outer layer PP cotton 68 is in close contact with an inner wall of the housing 61, a water outlet connector 69 is installed at a lower end of the inner core pipe 64, the water outlet connector 69 extends to a lower end surface of the housing 61, and the water outlet connector 69 is fixedly connected with the water outlet pipe 8.

Further, the conversion mechanism 5 includes a turntable 51, the height of the turntable 51 is equal to one sixth of the height of the housing 61, a rotation shaft 52 is mounted in the middle of the lower end of the turntable 51, the lower end of the rotation shaft 52 is movably connected with the lower wall of the inner cavity of the housing 1, and two through-going placement grooves 53 are formed in the upper end of the turntable 51.

Further, the two placement grooves 53 are movably sleeved with the two shells 61 respectively, and the placement grooves 53 are used for installing the shells 61, and the shells 61 are prevented from toppling.

Further, a lower opening 11 is formed at the lower end of the housing 1, the lower opening 11 is located right below the upper opening 4, and the diameter of the lower opening 11 is larger than that of the water outlet pipe 8.

Further, the outlet pipe 8 extends through the lower opening 11.

It should be noted that, the utility model is a nanofiltration device for sewage treatment, through setting up two nanofiltration mechanisms 6 and being used for carrying on the sewage filtration alternately, the water inlet joint 62 and water inlet pipe 7 of one nanofiltration mechanism 6, the water outlet joint 69 is connected with water outlet pipe 8, finish the purification filtration of sewage through its internal nanofiltration membrane 65, activated carbon layer 67, after reaching the time of changing nanofiltration membrane 65, take down water inlet pipe 7 and water outlet pipe 8, then rotate the rotary table 51, make another nanofiltration mechanism 6 move to the upper opening 4 below, then finish connecting water inlet pipe 7 and water outlet pipe 8 with new nanofiltration mechanism 6, at the same time, can take away nanofiltration mechanism 6 that needs to be changed, finish the change of nanofiltration membrane 65, then put back again, wait for the next alternate change, the whole operation process has effectively reduced the down time of sewage treatment, has guaranteed the efficiency of sewage treatment; through setting up the impurity that filter screen 63 is arranged in filtering the great particle diameter in the sewage, the rethread sets up the cotton 68 of outer PP, activated carbon layer 67 and the cotton 66 impurity such as rust, silt in the absorption sewage of inlayer PP, reduces the probability that nanofiltration membrane 65 blockked up, is arranged in absorbing the heavy metal in the sewage through setting up nanofiltration membrane 65 at last, realizes the filtration purification of sewage.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a sewage treatment's nanofiltration device, includes shell (1), its characterized in that: the utility model discloses a shell, including shell (1), fixed plate (2), flip (3) are all rotated to fixed plate (2) left end and right-hand member, and the left side flip (3) upper end is opened there is upper shed (4), shell (1) inner chamber lower wall is provided with shifter (5), shifter (5) upper end is provided with two nanofiltration mechanism (6), the left side nanofiltration mechanism (6) upper end is installed inlet tube (7), inlet tube (7) run through upper shed (4) and are extended to flip (3) top, the left side nanofiltration mechanism (6) lower extreme is installed outlet pipe (8), outlet pipe (8) lower extreme extends to shell (1) below.

2. A nanofiltration device for sewage treatment according to claim 1, wherein: nanofiltration mechanism (6) are including casing (61), water inlet connector (62) are installed on casing (61) surface upper portion, water inlet connector (62) and inlet tube (7) fixed connection, filter screen (63) and inner core pipe (64) are installed from the top down in proper order to casing (61) inner chamber, inner core pipe (64) surface has wrapped gradually nanofiltration membrane (65), inlayer PP cotton (66), active carbon layer (67) and outer PP cotton (68) from inside to outside, outer PP cotton (68) surface and casing (61) inner wall in close contact with, water outlet connector (69) are installed to inner core pipe (64) lower extreme, water outlet connector (69) extend to casing (61) lower terminal surface, water outlet connector (69) and outlet pipe (8) fixed connection.

3. A nanofiltration device for sewage treatment according to claim 2, wherein: the conversion mechanism (5) comprises a rotary table (51), a rotary shaft (52) is arranged at the middle part of the lower end of the rotary table (51), the lower end of the rotary shaft (52) is movably connected with the lower wall of the inner cavity of the shell (1), and two holding grooves (53) which are vertically communicated are formed in the upper end of the rotary table (51).

4. A nanofiltration device for sewage treatment according to claim 3, wherein: the two placing grooves (53) are respectively and movably sleeved with the two shells (61).

5. The nanofiltration device for wastewater treatment according to claim 4, wherein: the lower end of the shell (1) is provided with a lower opening (11), and the lower opening (11) is positioned right below the upper opening (4).

6. The nanofiltration device for wastewater treatment according to claim 5, wherein: the water outlet pipe (8) penetrates through the lower opening (11).

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